Patent US3265743A successfully refreshed from Google Patents.
US3265743A
Expired / Lapsed
US
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Production of dihalocarbene adducts
Assignee: Ethyl Corp
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Filing: 1962-05-14
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Granted: 1966-08-09
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Gene C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:49
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/08; C07C; C07C17/00; C07C17/26; C07C17/263; C07C17/266; C07C17/272; C07C17/275; C07C251/00; C07C31/00; C07C31/34; C07C31/44; C07D307/00; C07D307/77; C07D307/93; C07D311/00; C07D311/02; C07D311/94; C07F; C07F3/00; C07F3/10; C07F3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A PROCESS INVOLVING THE GENERATION OF DIHALOCARBENE AND THE PROXIMATE FORMATION OF DIHALOCARBENE ADDUCTS WHICH COMPRISES THE STEP OF REACTING TOGETHER AN INITIALLY ESSENTIALLY ANHYDROUS MIXTURE WITH THE REACTANTS CONSISTING ESSENTIALLY OF A SOLID ALKALI METAL HYDROXIDE, A HALOFORM, AND A DIHALOCARBENE ACCEPTOR, SAID HALOFORM CONTAINING AT LEAST ONE HALOGEN ATOM SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE.
Claim 2
Dependent Claim
60 words
A PROCESS INVOLVING THE GENERATION OF DIHALOCARBENE AND THE PROXIMATE FORMATION OF DIHALOCARBENE ADDUCTS WHICH COMPRISES THE STEP OF REACTING TOGETHER AN INITIALLY ESSENTIALLY ANHYDROUS MIXTURE WITH THE REACTANTS CONSISTING ESSENTIALLY OF A SOLID ALKALI METAL HYDROXIDE, A HALOFORM, AND A DIHALOCARBENE ACCEPTOR, SAID HALOFORM CONTAINING AT LEAST ONE HALOGEN ATOM SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE.
References Cited (Backward Citations)
US2950328A
Cited
US2967181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |